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Wednesday, 10 April 2019 18:04

Pre-Scans & Post-Scans Are Required for All Collision-Damaged Vehicles, OEMs Say

Written by Victoria Antonelli
Eighty-seven people attended the CAA March 20 meeting. Eighty-seven people attended the CAA March 20 meeting.



Quinn added that much of the liability exposure stems from a shop using outdated or improper repair procedures.


“Technology also plays a role,” he said. “Modern ADAS systems, such as adaptive cruise control, lane keep, blind spot monitoring and other systems using cameras, sonar, radar and LIDAR sensors require calibration after replacement or repair.


“Even a minor collision can cause damage to these systems because they are not protected by ultra-high strength steel enclosures, but rather located right on the exterior of the vehicle.”


This is why a comprehensive estimating process now demands a pre-repair scan of the vehicle to identify any trouble codes and a post-repair scan to verify that these systems are all functioning properly, explained Quinn.


Quinn then shared a slide on what is included and not-included in pre-scans and post- scans.


“Scan” included operations:


• Locating the keys, vehicle and repair order

• Moving the vehicle to a designated area

• Running the vehicle long enough to reach operating temperature (note: antilock brake controllers can be temperature-sensitive)

• Locating and connecting battery support

• Locating and connecting scan tool

• Cycling the key

• Submit the scan request (which includes data entry of items like the vehicle and collision information)

• Reviewing the scan report


“Scan” not-included operations:


• Resetting and clearing stored faults

• Testing and diagnostics

• Liftgate / door relearns

• Adjusting passenger seat for seat weight sensor

• Test-driving the vehicle in accordance with the OEM’s repair procedures

• “Wiggle” test wiring harness to uncover short or ohm change on readings of live data

• Fuel level

• Check / adjust Tire Pressure

• Wheel speed sensors: through live data, voltage signal can be inspected - if faulty sensor is suspected shop may need to R&I wheel and inspect wheel sensors (common on suspension damage)

• Rear parking sensors: start vehicle and have a second person walk behind vehicle to ensure integrity of sensors

• ‘360 Camera’s: start vehicle and have a second person walk around vehicle to ensure integrity of sensors

• Initialization of modules

• Reprogramming of modules

• 4W Alignment BEFORE any steering angle sensor calibration or ADAS calibrations

• ADAS Calibrations

• Calibrations of radar

• Calibrations of sensors

• Calibrations of cameras

• Calibration of 360 camera systems

• Calibration of adaptive headlamps

• Calibration of seat weight sensor – SWS

• Calibration of forward-looking cameras

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